A264577 Prime numbers such that sum of digits in base 4 equals product of digits in base 4.

2, 3, 617, 677, 5593513, 5597797, 5608873, 5609113, 5609833, 5659237, 5662297, 5662357, 5678437, 5854633, 5855833, 5871013, 5871961, 5871973, 5872213, 5875033, 5876053, 5920357, 5921173, 5924437, 5937493, 6646357, 6658453, 6661477, 6706537, 6706597, 6707557

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..10000

Example

5593513_10 = 111111212221_4 is prime and the sum of digits of 111111212221 is equal to the product of digits.

Mathematica

Select[Prime@ Range[10^6], Total@ # == Times @@ # &@ IntegerDigits[#, 4] &] (* Michael De Vlieger, Nov 18 2015 *)

Crossrefs

Cf. A066306.

Sequence in context: A348360 A004887 A240709 * A165770 A226148 A108332

Adjacent sequences: A264574 A264575 A264576 * A264578 A264579 A264580

Keyword

nonn,base

Author

Chai Wah Wu, Nov 17 2015

Status

approved